EXTRA-TROPICAL  STORM  SURGE
N A T I O N A L    O C E A N I C    A N D    A T M O S P H E R I C    A D M I N I S T R A T I O N

  • This website is considered EXPERIMENTAL, is supported on an 8x5 basis, and has no guarantee of availability.
  • The data located HERE are considered OPERATIONAL and are supported on a 24x7 basis.
About
Manual
Disclaimer
Manual
Datum
hat-on
mhhw-on
msl-on
mllw-on
Regions
Northeast
Mid-Atlantic
Southeast
Gulf
Northwest
Alaska
Gulf of Alaska
Status
Stations
Ketchikan, AK
Sitka, AK
Juneau, AK
Skagway, AK
Elfin Cove, AK
Yakutat, AK
Cordova, AK
Valdez, AK
Seward, AK
Seldovia, AK
Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
Sand Point, AK
King Cove, AK
Adak Island, AK
Atka, AK
Unalaska, AK
Surge List
Gulf of Alaska
#Seattle, WA : 12/16/2025 12:22:49 GMT (units in feet MHHW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/14 12Z,   0.50,  -4.19,  -3.00,  99.90,   0.69,
12/14 13Z,   0.50,  -4.89,  -3.54,  99.90,   0.85,
12/14 14Z,   0.50,  -5.25,  -4.09,  99.90,   0.66,
12/14 15Z,   0.50,  -5.10,  -4.12,  99.90,   0.48,  (min)
12/14 16Z,   0.50,  -4.41,  -3.62,  99.90,   0.29,
12/14 17Z,   0.40,  -3.29,  -2.68,  99.90,   0.21,
12/14 18Z,   0.60,  -1.94,  -1.63,  99.90,  -0.29,
12/14 19Z,   0.60,  -0.73,  -0.73,  99.90,  -0.60,
12/14 20Z,   0.60,  -0.08,  -0.21,  99.90,  -0.73,  (max)
12/14 21Z,   0.60,  -0.17,  -0.30,  99.90,  -0.73,
12/14 22Z,   0.60,  -1.02,  -1.14,  99.90,  -0.72,
12/14 23Z,   0.60,  -2.56,  -2.57,  99.90,  -0.61,
12/15 00Z,   0.70,  -4.63,  -4.60,  99.90,  -0.67,
12/15 01Z,   0.70,  -6.86,  -6.74,  99.90,  -0.58,
12/15 02Z,   0.70,  -8.75,  -8.57,  99.90,  -0.52,
12/15 03Z,   0.70,  -9.90,  -9.67,  99.90,  -0.47,
12/15 04Z,   0.80, -10.15,  -9.69,  99.90,  -0.34,  (min)
12/15 05Z,   0.80,  -9.50,  -8.92,  99.90,  -0.22,
12/15 06Z,   0.60,  -8.10,  -7.52,  99.90,  -0.02,
12/15 07Z,   0.60,  -6.30,  -5.69,  99.90,   0.01,
12/15 08Z,   0.70,  -4.57,  -3.80,  99.90,   0.07,
12/15 09Z,   0.70,  -3.21,  -2.36,  99.90,   0.15,
12/15 10Z,   0.70,  -2.37,  -1.48,  99.90,   0.19,
12/15 11Z,   0.70,  -2.05,  -1.14,  99.90,   0.21,  (max)
12/15 12Z,   0.70,  -2.26,  -1.25,  99.90,   0.31,
12/15 13Z,   0.70,  -2.89,  -1.51,  99.90,   0.68,
12/15 14Z,   0.70,  -3.61,  -2.08,  99.90,   0.83,
12/15 15Z,   0.70,  -4.07,  -2.57,  99.90,   0.80,
12/15 16Z,   0.80,  -4.07,  -2.66,  99.90,   0.61,  (min)
12/15 17Z,   0.80,  -3.58,  -2.28,  99.90,   0.50,
12/15 18Z,   1.00,  -2.66,  -1.52,  99.90,   0.14,
12/15 19Z,   1.10,  -1.54,  -0.81,  99.90,  -0.37,
12/15 20Z,   1.10,  -0.63,  -0.16,  99.90,  -0.63,
12/15 21Z,   1.10,  -0.32,   0.09,  99.90,  -0.69,  (max)
12/15 22Z,   1.10,  -0.77,  -0.17,  99.90,  -0.50,
12/15 23Z,   1.20,  -1.97,  -1.19,  99.90,  -0.42,
12/16 00Z,   1.30,  -3.82,  -2.82,  99.90,  -0.30,
12/16 01Z,   1.30,  -6.11,  -4.92,  99.90,  -0.11,
12/16 02Z,   1.40,  -8.41,  -7.19,  99.90,  -0.18,
12/16 03Z,   1.40, -10.17,  -8.92,  99.90,  -0.15,
12/16 04Z,   1.40, -11.03,  -9.91,  99.90,  -0.28,  (min)
12/16 05Z,   1.40, -10.85,  -9.75,  99.90,  -0.30,
12/16 06Z,   1.30,  -9.73,  -8.84,  99.90,  -0.41,
12/16 07Z,   1.30,  -7.88,  -7.20,  99.90,  -0.62,
12/16 08Z,   1.20,  -5.74,  -5.25,  99.90,  -0.71,
12/16 09Z,   1.20,  -3.78,  -3.32,  99.90,  -0.74,
12/16 10Z,   1.10,  -2.28,  -1.76,  99.90,  -0.58,
12/16 11Z,   1.00,  -1.34,  -0.86,  99.90,  -0.52,
12/16 12Z,   1.00,  -0.99,  -0.60,  99.90,  -0.61,  (max)
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
12/16 13Z,   0.90,  -1.23,  99.90,  -0.90,  -0.57,
12/16 14Z,   0.90,  -1.93,  99.90,  -1.56,  -0.53,
12/16 15Z,   0.90,  -2.74,  99.90,  -2.32,  -0.48,
12/16 16Z,   0.90,  -3.29,  99.90,  -2.83,  -0.44,
12/16 17Z,   0.90,  -3.39,  99.90,  -2.89,  -0.40,  (min)
12/16 18Z,   0.90,  -3.01,  99.90,  -2.46,  -0.35,
12/16 19Z,   0.90,  -2.22,  99.90,  -1.63,  -0.31,
12/16 20Z,   0.90,  -1.30,  99.90,  -0.66,  -0.26,
12/16 21Z,   0.90,  -0.68,  99.90,   0.00,  -0.22,
12/16 22Z,   0.90,  -0.72,  99.90,   0.01,  -0.18,  (max)
12/16 23Z,   0.90,  -1.54,  99.90,  -0.77,  -0.13,
12/17 00Z,   0.90,  -3.09,  99.90,  -2.28,  -0.09,
12/17 01Z,   0.90,  -5.23,  99.90,  -4.42,  -0.09,
12/17 02Z,   0.90,  -7.67,  99.90,  -6.86,  -0.09,
12/17 03Z,   0.90,  -9.91,  99.90,  -9.10,  -0.09,
12/17 04Z,   1.00, -11.38,  99.90, -10.47,  -0.09,
12/17 05Z,   1.00, -11.77,  99.90, -10.86,  -0.09,  (min)
12/17 06Z,   1.10, -11.05,  99.90, -10.04,  -0.09,
12/17 07Z,   1.10,  -9.40,  99.90,  -8.39,  -0.09,
12/17 08Z,   1.10,  -7.15,  99.90,  -6.14,  -0.09,
12/17 09Z,   1.20,  -4.77,  99.90,  -3.66,  -0.09,
12/17 10Z,   1.30,  -2.72,  99.90,  -1.51,  -0.09,
12/17 11Z,   1.40,  -1.24,  99.90,   0.07,  -0.09,
12/17 12Z,   1.50,  -0.39,  99.90,   1.02,  -0.09,
12/17 13Z,   1.60,  -0.17,  99.90,   1.34,  -0.09,  (max)
12/17 14Z,   1.70,  -0.58,  99.90,   1.03,  -0.09,
12/17 15Z,   1.70,  -1.42,  99.90,   0.19,  -0.09,
12/17 16Z,   1.80,  -2.30,  99.90,  -0.59,  -0.09,
12/17 17Z,   1.80,  -2.88,  99.90,  -1.17,  -0.09,
12/17 18Z,   1.80,  -3.00,  99.90,  -1.29,  -0.09,  (min)
12/17 19Z,   1.80,  -2.63,  99.90,  -0.92,  -0.09,
12/17 20Z,   1.70,  -1.92,  99.90,  -0.31,  -0.09,
12/17 21Z,   1.60,  -1.19,  99.90,   0.32,  -0.09,
12/17 22Z,   1.50,  -0.85,  99.90,   0.56,  -0.09,  (max)
12/17 23Z,   1.40,  -1.25,  99.90,   0.06,  -0.09,
12/18 00Z,   1.40,  -2.43,  99.90,  -1.12,  -0.09,
12/18 01Z,   1.30,  -4.31,  99.90,  -3.10,  -0.09,
12/18 02Z,   1.20,  -6.68,  99.90,  -5.57,  -0.09,
12/18 03Z,   1.20,  -9.16,  99.90,  -8.05,  -0.09,
12/18 04Z,   1.10, -11.19,  99.90, -10.18,  -0.09,
12/18 05Z,   1.00, -12.23,  99.90, -11.32,  -0.09,  (min)
12/18 06Z,   1.00, -12.05,  99.90, -11.14,  -0.09,
12/18 07Z,   0.90, -10.75,  99.90,  -9.94,  -0.09,
12/18 08Z,   0.90,  -8.61,  99.90,  -7.80,  -0.09,
12/18 09Z,   0.80,  -6.06,  99.90,  -5.35,  -0.09,
12/18 10Z,   0.80,  -3.59,  99.90,  -2.88,  -0.09,
12/18 11Z,   0.70,  -1.62,  99.90,  -1.01,  -0.09,
12/18 12Z,   0.70,  -0.32,  99.90,   0.29,  -0.09,
12/18 13Z,   0.70,   0.31,  99.90,   0.92,  -0.09,  (max)
12/18 14Z,   0.70,   0.28,  99.90,   0.89,  -0.09,
12/18 15Z,   0.70,  -0.35,  99.90,   0.26,  -0.09,
12/18 16Z,   0.70,  -1.33,  99.90,  -0.72,  -0.09,
12/18 17Z,   0.70,  -2.23,  99.90,  -1.62,  -0.09,
12/18 18Z,   0.70,  -2.75,  99.90,  -2.14,  -0.09,  (min)
12/18 19Z,   0.80,  -2.78,  99.90,  -2.07,  -0.09,
12/18 20Z,   0.80,  -2.38,  99.90,  -1.67,  -0.09,
12/18 21Z,   0.80,  -1.72,  99.90,  -1.01,  -0.09,
12/18 22Z,   0.80,  -1.17,  99.90,  -0.46,  -0.09,
12/18 23Z,   0.90,  -1.14,  99.90,  -0.33,  -0.09,  (max)
12/19 00Z,   1.10,  -1.88,  99.90,  -0.87,  -0.09,
12/19 01Z,   1.30,  -3.40,  99.90,  -2.19,  -0.09,
12/19 02Z,   1.40,  -5.55,  99.90,  -4.24,  -0.09,
12/19 03Z,   1.50,  -8.06,  99.90,  -6.65,  -0.09,
12/19 04Z,   1.60, -10.47,  99.90,  -8.96,  -0.09,
12/19 05Z,   1.60, -12.16,  99.90, -10.65,  -0.09,
12/19 06Z,   1.60, -12.67,  99.90, -11.16,  -0.09,  (min)
12/19 07Z,   1.70, -11.88,  99.90, -10.27,  -0.09,
12/19 08Z,   1.70, -10.03,  99.90,  -8.42,  -0.09,
12/19 09Z,   1.70,  -7.52,  99.90,  -5.91,  -0.09,
12/19 10Z,   1.70,  -4.81,  99.90,  -3.20,  -0.09,
12/19 11Z,   1.60,  -2.41,  99.90,  -0.90,  -0.09,
12/19 12Z,   1.60,  -0.66,  99.90,   0.85,  -0.09,
12/19 13Z,   1.50,   0.36,  99.90,   1.77,  -0.09,
12/19 14Z,   1.50,   0.67,  99.90,   2.08,  -0.09,  (max)
12/19 15Z,   1.40,   0.34,  99.90,   1.65,  -0.09,
12/19 16Z,   1.40,  -0.51,  99.90,   0.80,  -0.09,
12/19 17Z,   1.40,  -1.56,  99.90,  -0.25,  -0.09,
12/19 18Z,   1.30,  -2.39,  99.90,  -1.18,  -0.09,
12/19 19Z,   1.30,  -2.76,  99.90,  -1.55,  -0.09,  (min)
12/19 20Z,   1.30,  -2.65,  99.90,  -1.44,  -0.09,
12/19 21Z,   1.20,  -2.18,  99.90,  -1.07,  -0.09,
12/19 22Z,   1.20,  -1.58,  99.90,  -0.47,  -0.09,
12/19 23Z,   1.20,  -1.23,  99.90,  -0.12,  -0.09,  (max)
12/20 00Z,   1.10,  -1.50,  99.90,  -0.49,  -0.09,